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Author
- George Bellas Greenough.3
- Winchell, Newton Horace2
- A. Hoen & Co.1
- Bayley, William Shirley1
- Geological and Natural History Survey of Minnesota.1
- Gilbert, B. D.1
- Kirk, N. M.1
- Smith, William G.1
- Snyder & Black Lithogrs.1
- U.S. Lake Survey.1
- United States. Bureau of Soils1
- Westover, Harvey Leroy1
- Geological Survey of India.1